30 Years Space Vectors, 20 Years Field Orientation, 10 Years Digital Signal Processing with Controlled AC-Drives, a Review (Part 1)

Leonhard, Werner

doi:10.1080/09398368.1991.11463257

Cited by 89 publications

(23 citation statements)

References 6 publications

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“…Indeed, according to (12) the quantity in the general phase "y" for the DmPhS , X , in (13) , of (16) and the quantity in the same phase "y" for the DmPhS, X * , of sequence (m -g )…”

Section: T X T T G M X T X T T G M X T X T T G M Mmentioning

confidence: 99%

“…Let it be a current DmPhS of sequence g as defined in (12). The current sheet space waves produced by this system are obtained by replacing in (28) …”

Section: Appendixmentioning

confidence: 99%

“…Indeed, their authors, which always assume the hypothesis of no space harrmonics, analyzed first in all detail [6, and as early as the 1970´s they were widely used in Central Europe in numerous books on this subject [8 -11]. The important influence of the new space vector viewpoint on the development of modern control methods for three phase machines was also pointed out in [12]. It should be added that the approach in [6] was mainly spread in German language and remained practically unnoticed in the English literature until the eighties of the past century.…”

Section: Introductionmentioning

confidence: 99%

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Space phasor theory and control of multiphase machines through their decoupling into equivalent three-phase machines

Serrano-Iribarnegaray

2013

Electr Eng

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“…Indeed, according to (12) the quantity in the general phase "y" for the DmPhS , X , in (13) , of (16) and the quantity in the same phase "y" for the DmPhS, X * , of sequence (m -g )…”

Section: T X T T G M X T X T T G M X T X T T G M Mmentioning

confidence: 99%

“…Let it be a current DmPhS of sequence g as defined in (12). The current sheet space waves produced by this system are obtained by replacing in (28) …”

Section: Appendixmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Space phasor theory and control of multiphase machines through their decoupling into equivalent three-phase machines

Serrano-Iribarnegaray

2013

Electr Eng

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“…The idea is to obtain a linear expression of the electromapetic torque -similar to that of the DC-machines -by a scheme which allows decoupling control of flux and torque. Since then, the number of works presented in this area has not ceased to increase [2]. Several studies have been developed to find an alternative solution to the classical method of field ofiented control of the IM fed by a PWM inverter [3]- [6].…”

Section: Introductionmentioning

confidence: 98%

Dynamic reconfiguration of direct torque and stator flux control by means of sliding mode theory

Naassani¹,

Louis²

2005

2005 European Conference on Power Electronics and Applications

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This paper presents the synthesis of the direct torque and stator flux control strategies (DTSFC) by means of sliding mode theory. Two cases of voltage source inverter (VSI) control will be analyzed: a direct control (hysteresis VSI control) imnplying the use of a switching table, anld an indirect control by means of SVM. Finally, these two methods of VSI control will be associated together in a new strategy called Dynamic Reconfiguration of VSI Control Algorithms. This association yields an excellent dynamic performances at transient state as a result of VSI direct control method and low chattering at steady-state (lue to the VSI indirect control strategy. To support tie proposed synthesis of

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“…[6] . We have used the AC machine niodcl and its control in field co-ordinates, assuming impressed stator cuncnts and current control in stator co-ordinates [8]. The mathcmatical approach given by W. Leonard [ 11 is used here, where a symmetrical three phase windings having sinusoidal spatial magneto motrise force (m.m.f.)…”

Section: Mathematical Model Of the Induction Motormentioning

confidence: 99%

A novel adaptive vector control system for temperature compensation in induction motors

Aleman-Nieto

Raoof

Quezel

Proceedings of IEEE/IAS International Conference on Industrial Automation and Control

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A new method for the improvement of temperature variation in the Induction Motor (IM) s p e d control is presented in this paper. A direct measurement of the rotor temperature is assumed. The compensation of the temperature effect is made not only by adjusting a digital filter flux model coefficients but also by calculating the on-line Proportional Integral (PI) controller coefficients. These corrections yield matching of the flux model and the induction motor model, consequently the magnitude of the reference rotation and the induction motor model angle's are equal so the matching of the command estimated variables and the real variables of the induction motor is obtained. This method uses the direct field-oriented vector control and eliminates its main disadvantage which is the decoupling of flux and torque when a rotor time .constant varies. The simulations have shown an improvement mainly in the transient state response. k*(t) = Conjugated complex current vector.Once the flux density on the stator si& of the air gap is calculated. the flux linkage can be obtained for each stator winding and the combination of the three scalar flux linkages gives the instantaneous stator flux wave which is:where;Similarly the rotor flux is :The ficld oriented control method allows an excellent motor dynamic performance. The knowledge of the rotor flux position detcrmincs whether the vector control scheme is direct [5], [7] (flux measured) or indirect [9], [12] (Bux estimated). The indirect vector control is more popular due to the absence of field angle sensors and the ease of operation at low speeds [9]. However it is very sensible to parameter variations due to temperature changes [lo], [12].The machine parameters dependency was discussed in many papers (31.[ l l ] . whcre the proposed solution was based on parameter adaptation. Unfortunately many of these methods are not easy to iinplcmcnt and the speed of response is to be evaluated.To overcome this disadvantage a simple and reliable method is presented here. It is assumed that rotor's temperature measurement is obtained in real time. The proposed method uses the direct vector control scheme [12], where the most important parameter to v i e care of is the rotor time constant variation (ATR). This paper begins by reviewing the mathematical model of the induction motor and the vector control equations. Then temperature vnrintion correction is dcvcloppcd by adapting the flux model on one hand and the controller's constants on the other hand. Finally simulation results and conclusion comments are presented. MATHEMATICAL MODEL OF THE INDUCTION MOTORThe niatlicmatical equation of the familiar three-phase induction motor are remainded here [2]. [6] . We have used the AC machine niodcl and its control in field co-ordinates, assuming impressed stator cuncnts and current control in stator co-ordinates [8]. The mathcmatical approach given by W. Leonard [ 11 is used here, where a symmetrical three phase windings having sinusoidal spatial magneto motrise force (m.m.f.) distribution is ...

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30 Years Space Vectors, 20 Years Field Orientation, 10 Years Digital Signal Processing with Controlled AC-Drives, a Review (Part 1)

Cited by 89 publications

References 6 publications

Space phasor theory and control of multiphase machines through their decoupling into equivalent three-phase machines

Space phasor theory and control of multiphase machines through their decoupling into equivalent three-phase machines

Dynamic reconfiguration of direct torque and stator flux control by means of sliding mode theory

A novel adaptive vector control system for temperature compensation in induction motors

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